jquery mask phone telefone 9 digitos

main.js

// https://github.com/igorescobar/jQuery-Mask-Plugin/tree/master/dist

$(function () {
    $('.phone').mask(PhoneMaskBehavior, spOptions);
});
var PhoneMaskBehavior = function (val) {
    return val.replace(/\D/g, '').length === 11 ? '(00) 00000-0000' : '(00) 0000-00009';
},
spOptions = {
    onKeyPress: function (val, e, field, options) {
        field.mask(PhoneMaskBehavior.apply({}, arguments), options);
    }
};